Bag baling machine



Sept. 29, 1953 C. ROBINSON BAG BALING MACHINE Filed Sept. 28, 1950 3 Sheets-Sheet l JNVENToR. faul amsif/ Sept. 29, 1953` P. c. RoBlNsoN BAG BALING MACHINE 5 Sheets-Sheet 2 Filed Sept. 28, 1950 H H HH HHHHHU.

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' JNVENTOIL Paul ahwa/z/ P. c. ROBINSON 2,653,431

BAG BALING MACHINE 5 Sheets-Sheet 3 lili;

Sept. 29, 1953 Filed sept. 28, 1950 IQ s WR Ml: IMU@ C Y \w\\\.- 7. ww, 1f s. A@ ,u\ a Wwlmmwqhlhrlhnlll ,um NNN Il F NN .n HMM uw 1- NW1 .1 N E -N\ Nn Nm. wm. ,/\n.\ Q. -#NN.: Sw NNPMV., W@ uw ww Patented Sept. 29, 1953 BAG BALING `MACHINE `Paul C. Robinson, Canajoharie, N. Y.,assignor`-to Arkell and Smiths, a corporation of New York Application September 28, `1950, Serial No. 187,325

6 Claims.

This invention relates ito an improved. baling machine-used for` packaging a stack Vof paper bags ior the like.

This device compresses the bags into an exceptionally tight package for shipment.

The great convenience of' my device is that the bags-may be quickly andlaccurately positioned cna-'sheet lof Wrapping paperl held between a fixed-'plate and a movable flange- |Ihe bags'are then automatically -compressed by mechanical Ameans sothat the Wrapper may be tightly -secured around ythe bags tohold them rigidly withinthe package thus formed.

For-most efficient packaging I nd thatr it is ll'iighlyessential to accurately center the bag stack onthe--wrapping paper. Otherwise the paper cannot be Wrapped around the bag stack to completely enclosey it or an excessively large sheet of paper must be used which Would increase the cost 'or packaging; For this purpose, I vprovide 'a removable bag guide which extends between the fxed plate andmovable flange. 'Ihis bag guidel is so positioned --that by placing the upright Vend edge of cach bag against the guide the longitudinalaxis ofthe bag stack will be V:for

practical purposes parallel to andd-irectly above the-longitudinal axis of the Wrapping paper. Thu-s, the bags maybe quickly and accurately centered lon the Wrapper without the necessity for further handling.

thepreferred lform of my invention the device is tilted to position the movable flange below-'the level of the -Xed plate. Stacking is started at'the movable flange and the angle of tilt is such that the b ags, which are placed on edge in the dev-ice, tend to gravitate toward the fiange. Thus the Weight of each bag holds it in anuprig'ht position against the bag ahead of it and the stack may be easily and conveniently formed Without danger of the last bag falling which would necessitateV its being restacked before subsequent bags are placed in line.

This` invention can readily be understood by reference tothe accompanying drawing in Which Fig. 1'V is a top plan view of my invention; Fig. 2 is aseo-tional View taken on line' 2-2 of Fig. 1 slfiowingA the movable flange and xed plate; Fig. 3 is a-sectionalview taken on line 3`3 of Fig.` 2; Fig. l is; a sectional view; on line fie-ll' of Fig. 2 and-shows the bag guide mounting means.

ln'the baling machine villustrated the various members Yare mounted on table lll and include a fixed; but removable, abutment plate |42 secured slightly above Vone en d ofthe table by U.shaped b'ra'ck'f-ft's`'Iil.A Abutment plate l2 may be secured Vin brackets '1M by means cian; easily removable pin l5. 'Brackets :I4 are bolted: tosupporting members l5 which are provided with a series of boltholes i8 for-adjusting the position 'ofthe lplate for-bagk stacks of dierent length. Largely covering table l0 and extending under the'abutment plate is a slidable metal platform 2G with an upright fiange22 at one end. The forcenecessary to slide this flangedplatform on table 'l0 isA supplied by a double acting air cylinder -2`4 which is connected bysuitabl levers', later described, to flange 22.

In operation, a sheet of wrapping paper 26 is placed upon the platform with its front edge corresponding to the side edge of table l0. A considerable portion of the paper Vextends vover flange 22 and underabutment plate'lZ. 'Ihe bags are then manually stacked upon this paper between the iiange and abutment plate. In order to insure accurate positioning of the bags crossvviseon` the vvrappingpaperA I provide a bag guide 28' consisting of a strip of angle iron which eX- tends between flange 22 and the abutment `plate supportingmember i6. This bag guide isprovided with. arms `Sllsecured by'slots 32 and bolts all. to t,shaped brackets 36Y which are pivotally mounted'V on a'shaft. "Spring 39' attached'to table te and-brackets 3.6 carries a portionof the weight Ato assist rotation Yof the Vguide around 36y shaft3v8. A handle 40' is provided on topY ofthc bag guide by which it may be 'rotatedaround the shaftfaway from table llt so that flange 22 and abutment plate' l2 are freeto compress the bags after they have been positioned in the apparatus.

This bag guide is. adjustable for bags of` different length and for different size packages. For different length bags, bolts 34 are loosened and guide A28VA is moved across .table l0 and then locked in .place Where it Willcenter the bag' stack on the Wrapping paper. In order to adjust the guide to .correspond with the position of abutment plate jl'2 for different size packages, I provide an extension :4.2 mounted.` on bag guide 28 by bolts l'll and'slot Gli'. This extensionis locked inplace bolts t4 for the desired setting of abutmentfplate ,l2 and forms a continuous guide from the abutment plate to flange 22. 'l.".l1us the. bags may be quickly and accurately stackedv on paper simply by placingthey upright end. edge Y off the Wrapper may bebOrrelated to. the vbag,..vsize to insurethe most economic use of paper.

With the bags accurately positioned on wrapping paper 26 the operator compresses the stack by sliding flange 22 toward abutment plate l2. The force necessary for this operation is provided by double acting air cylinder 24. This cylinder is actuated by a conventional air slide valve 48 which directs air under pressure from supply line D to opposite ends of the cylinder through tubes 52 and 54. Piston rod 56 of this cylinder is connected to a pair of forcing levers 58 by cross head lill. These levers are pivoted at their lower ends on a shaft 62 mounted by suitable bearings 64 and at their upper ends they are secured to connecting links 66 by shaft E8. The links in turn connect the forcing levers to the flange 22 of platform I2 by rollers 1D on a shaft 12 which is mounted in slots 74 of the upright angle irons 'l and to guide bars 18 by arms 80 and shaft 82.

To compress the bag stack, valve 48 is set to supply air through tube 52 which drives the piston and piston rod of air cylinder 24 to the right. This forces levers 58 to the right and they are guided in the middle of opening 84 in table l0 by arms S0 of guide bar 18. The force of compression is transmitted from the levers through connecting links 56 to shaft 12 and in turn to rollers which distribute this force evenly over the surface of flange 22. This pushes the flange toward abutment plate I2 and tightly compresses .the bag stack between these members.

As the ila-nge moves toward the abutment plate, slidable platform 28 is moved with the flange and slides wrapping paper 25 along the undersurface of the bag stack in the direction of compression. I find that this prevents gathering or wrinkling of the wrapping paper because the paper moves out from under the bags a distance equal to that moved by flange 22 in shortening the length of the stack by compression. Thus there is no tendency for excess paper to form under the stack and the finished package may be tightly wrapped to hold the bags in their compressed state.

The compressed bags are packaged by tightly folding the ends of the wrapping paper over the stack where they are secured to each other by suitable adhesive. This forms an open paper Wrapper around the bag stack and abutment plate l2. After the adhesive has taken hold, pressure on the stack is released by setting valve 48 so that air is supplied through tube 54 to air cylinder 24 which forces flange 22 away from the abutment plate. This plate is then conveniently pulled from U-shaped brackets I4 and out of the paper wrapper by handle 8S provided for such purpose. The open ends of the wrapper are now tightly folded around the compressed bag stack and glued to form the finished package.

In the preferred form of my invention shown the top of table l0 is tilted at an angle so that platform 20 extends to the right at an angle with a horizontal plane through the base of flange *22. As shown in Fig. 2, stacking of the bags on wrapping paper 26 is started at flange 22 and the angle of tilt is such that the bags tend to rest against the flange and each other. After the stack is partially formed wrapper 26 is pulled taut to form a right angle corner at the base of flange 22 and the bag weight against the flange anchors the wrapper in position. This eliminates the formation of wrinkles of excess paper against flange 22 when the finished stack is compressed and the package may be tightly formed to hold the bags in their compressed state for shipment.

The materials used in the construction of my baling machine are those conventionally used for this type of structure.

It will be understood that it is intended to cover all changes and modifications of the preferred embodiment of this invention herein chosen for the purpose of illustration which do not constitute departures from the spirit and scope of the invention.

What I claim is:

1. In a baling machine the combination of a movable platform with a flange at one end adapted to receive a sheet of wrapping paper for packaging a stack of paper bags placed thereon, a removable abutment plate held immediately above said platform in position to cooperate with the flange for applying pressure to the bag stack, reciprocating means for moving the platform to slide the wrapper under said abutment plate and compress the bag stack between said ange and abutment plate, said means being adapted to hold the bags compressed until the ends 0f the paper are wrapped and glued around the bag stack and said means being further adapted t0 release the pressure so that the abutment plate may be removed from the open wrapper, after which the finished package is formed.

2. A structure as specified in claim l in which the abutment plate is adjustable in relation to the platform so that its position may be changed for bag stacks of different length.

3. A structure as specied in claim 1 in which the platform extends at an angle to a horizontal plane through the base of said flange whereby the bags tend to gravitate toward the flange.

4. n a baling machine the combination of a movable platform with a flange at one end adapted to receive a sheet of wrapping paper for packaging the stack of paper bags placed thereon, a removable abutment plate held immediately above said platform in position to c0- operate with the flange for applying pressure to the bag stack, a removable guide bar positioned above and along one side of said platform adapted to form a guide for the bags to center them across the wrapping paper, means for rotating said guide away from the platform after the stack has been formed, reciprocating means for moving the platform to slide the paper wrapper under said abutment plate and compress the bag stack between said flange and abutment plate, said means being adapted to hold the bags compressed until the ends of the paper are wrapped and glued around the bag stack and being further adapted to release the pressure so that the abutment plate may be removed from the open wrapper, after which the finished package is formed.

5. A structure as specified in claim 4 in which the bag guide is adapted to be adjusted for different length bags.

6. A combination of a table with an inclined top surface, a platform with an upright flange at one end slidably mounted on said table top and adapted to receive a sheet of wrapping paper for packaging a stack of paper bags placed thereon, a removable substantially vertical abutment plate held immediately above said platform in position to cooperate with said flange for applying pressure to the bag stack, said table top being tilted at such an angle that the bags tend to gravitate toward the flange, a removable guide bar positioned above and along one side of said platform adapted to form a guide for the bags and center them across the wrapping paper, means for rotating said guide away from the,

platform after the stack has been formed and References Cited in the le of this patent reciprocating means including an air cylinder for UNITED STATES PATENTS sliding the platform to compress the bag stack f between said flange and abutment plate and to Number Name Date 0 slide the wrapping paper under the abutment 5 427,849 Getten May 13 189 plate with said means being adapted to hold the 466,075 Brown Eec- 29 1891 bags compressed until the ends of the paper 471,303 Seybold mal" 22 1892 are Wrapped and glued around the bag stack 113591311 Avery NOV' 16 1920 and being further adapted to release the pres- 2'418550 Edwards Apr 8 1947 sure so that the abutment plate may be removed 19 FOREIGN PATENTS from the open en ded wrapper, after which the Number Country Date mnshed package 1s formed' 342,069 France Apr. 9, 1904 PAUL C. ROBINSON. 

